If `m and n` are positive integers, then the digit in the units place of `5^n+6^m` is always (a) 1 (b) 5 (c) 6 (d) `n+m`

If n is a positive integer, then what is the digit in the unit place of 3^(2n+1)+2^(2n+1) ?

3.If m o* n are positive integers such that m^(2)+2n=n^(2)+2m+5, then the value of n is

If m and n are positive integers such that m^(n) = 1331 , then what is the value of ( m-1)^(n-1) ?

If m and n are positive integers, then prove that the coefficients of x^(m) " and " x^(n) are equal in the expansion of (1+x)^(m+n)

If x is an even number,then x^(4n), where n is a positive integer,will always have zero in the units place (b) 6 in the units place either 0 or 6 in the units place (d) None of these

If m and n are two integers such that m = n^(2) - n , then (m^(2) - 2m) is always divisible by

Let n gt1 be a positive integer, then the largest integer m such that (n^m+1) divides (1+n+n^2+…+n^(127)) , is